Wood-pump-rod extractor for wells



Dec. 7 1926. 1,609,370

A. T. LARSON WOOD PUMP ROD EXTRACTOR FOR WELLS Filed Feb. 9, 192a I rweiztor fl L 1 Jamm Patented Dec. 7, 1926.

ARTHUR THEODORE LARSON, OF NEW WINDSOR, ILLINOIS.

WOOD-PUMP-ROD EXTHACTOR FOR WELLS.

Application filed February 9, 1926. Serial No. 87,106.

This invention relates to a tool adapted for use in extracting wooden pump rods from wells that have become broken in the well, or-

that have become detached from the couplidngs that interconnect the sections of the The primary object of the invention is to substantially improve and simplify pump rod extractors of this general character, the

invention being of relatively simple construction and simple of operation, and of such a nature as to permit the extracting of broken pump rods from wells by even an inexperienced person in relatively short time.

With the foregoing and other objects in view as the nature of the invention will be better understood, the same comprises the novel form, combination and arrangement of parts hereinafter more fully described, shown in the accompanying drawing and claimed.

In the drawing wherein .like reference characters indicate corresponding throughout the several views:

Figure 1 is a view mostly in side elevation but partly in cross section of a wood pump rod extractor constructed in accordance with the present invention.

Figure 2 is a fragmentary detail longitudinal section thereof taken at right angles to Figure 1, and

Figure 3 is an enlarged detail transverse section taken substantially upon the line 33 of Figure 2. y

Now having particular reference to the drawing. my novel pump rod extractor constitutes the provision of a relatively elongated metallic barrel 5 of predetermined cross sectional area so as to snugly fit within the well casing. As more clearly shownin Figure 1, the lower end of said barrel is beveled as at 6 in order that the rod will be forced therein during the downward movement of the barrel Within the casing. Formed upon the upper end of said barrel 5 at opposed points thereon are longitudinally extending arms 7 77,' curvilinear in cross section and that merge at their upper ends and so constructed as to permit of the attachment of the barrel to a pump rod section 8 through the medium of a conventional pump rod section couple 9, said arms being interconnected at parts 7 their rear sides and at spaced points thereon by cross strips 10 and 11.

At the upper open end of the barrel 5 the same is formed at its forward side with a vertically extending and inwardly projecting sharpened finger 12 while in opposed relation therewith is an upwardly and inwardly directed ear 13 to which is pivotally secured a sharpened finger 1 1 that is normally forced inwardly of the barrel by the action of the leaf spring 15 engaging at its lower end within a notch upon the outer side of said finger and secured at its upper end to the uppermost, connecting strip 11 between the arms 77, said spring being slidably guided adjacent its lower end through a slot in the lowermost connecting strip 10 in order that said lower end of the strip will snap out of said notch in the finger 14. 7

Through he provision of said fingers 12 and 14: a broken pump rod A over'which the barrel 5 has been extended will be clutched therein permitting the same to be drawn'upwardly from the well when the barrel is removed therefrom. V

In order that pump rod sections that have pulled away from the main pump rod carrying the connecting couple therewith may be raised, said barrel is formed at two or more opposedpoints with inwardly struck spring lingers 1616 that will engage the couple similar in construction to the one shown and designated 9 in Figure 1.

It will thus be seen that I have provided a highly novel, simple, and eflicient wooden pump rod extractor for wells that is well adapted for'all the purposes heretofore designated, and even though I have disclosed the implement as including certain detailed structural elements, it is nevertheless to be understood that minor changes may be made therein without afiecting the spirit and'scope of the appended claim.

Having thus described the invention, what 7 I claim as new and desire to secure by Letters. Patent 1s:-- v

In a pump ro'd extractor of'the class de scribed, a relatively elongated barrel, dia-v vmetrically opposed arms extending longitu- V dinally from the upper end of the barrel and merging at "their free ends into a pump rod couple section, connecting strips between the arms, an inwardly extending finger formed on the upper end of the barrel, a co-acting finger pivotally supported on the upper end of the barrel at a point diametrically opposite the aforementioned finger, a leaf spring secured at 1ts upper end to one of sa1d connecting strips, the free end of said leaf spring 

